Toyota Sienna Service Manual: Problem symptoms table
HINT: Proceed to the troubleshooting for each circuit in the table below.
AIRBAG SYSTEM
|
Symptom |
Suspected Area |
| The SRS warning light goes off after the primary check, but then comes on. | SRS Warning Light Remains ON |
| When the ignition switch is turned to the ON position, the SRS warning light sometimes remains on even after approximately 6 seconds. | SRS Warning Light Remains ON |
| The SRS warning light always comes on even when no DTC is output. | SRS Warning Light Remains ON |
| When the ignition switch is turned to the ON position, the SRS warning light does not come on. | SRS Warning Light does not Come ON |
| Although the SRS warning light operates normally, a DTC or a normal system code is not displayed. | Diagnosis Circuit |
| Although terminals TC and CG are not connected, a DTC or normal system code is displayed. | Diagnosis Circuit |
How to proceed with
troubleshooting
HINT:
*: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
(a) Confirm problem symptoms
3 CHECK MULTIPLEX COMMUNICATION SYSTEM*
Check if the multi ...
Terminals of ECU
1. CENTER AIRBAG SENSOR ASSEMBLY (w/ Side
Airbag)
2. CENTER AIRBAG SENSOR ASSEMBLY (w/o Side
Airbag)
...
Other materials:
Customize parameters
HINT:
The following items can be customized.
NOTICE:
After confirming whether the items requested by the
customer are applicable or not for customization,
perform the customize operation.
Be sure to record the current settings before
customizing.
When troubleshooting, make sure that ...
Horn
To sound the horn, press on or
close to the mark.
WARNINGCaution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an
accident,
resulting in death or serious injury.
After adjusting the steeri ...
Removal and installation of engine intake parts
REMOVAL AND INSTALLATION OF ENGINE INTAKE PARTS
(a) If any metal particles enter inlet system parts, this
may damage the engine.
(b) When removing and installing inlet system parts,
cover the openings of the removed parts and engine
openings. Use gummed tape or other suitable
materials ...
